Science news articles about 'measurement standards'

... in everyday medicine, laboratories need better measurement standards, the scientists say. "No one really knows what ... other forms of vitamin D, NIST developed Standard Reference Material 972 (SRM 972). ...

... bone diseases, government chemists are reporting an advance in developing an accurate, reliable set of standards for measuring vitamin D levels in blood. Their findings could affect the health of ...

... to link all units to fundamental constants, a more stable and reproducible approach than traditional measurement standards based on physical objects or substances. The current Kelvin is defined in ...

... of a unique parallel beam diffractometer at NIST that makes measurements traceable to international measurement standards and is believed to be the most accurate angle measuring device of its kind in ...

... Products and Food Branch to protect Canadian public health. Canada's Institute for Measurement Standards and others discussed measurement science as a key tool for helping to ensure the quality of ...